Large Superworms – 1.5-2″

Large Superworms for Sale Large superworms run about 1.5″ to 2″, the bigger feeding size. They are the larvae of the darkling beetle Zophobas morio, a different species from mealworms. They are meaty and high in protein, and their active movement tempts reluctant feeders. TC raises them on grasses, oats, bran, and wheat for a well-rounded gut-load. They suit larger insectivores. A High-Protein Feeder Large superworms make a substantial meal for bigger animals. Bearded dragons, larger geckos, monitors, turtles, birds, and fish all take them. So they work well as a main feeder for larger pets or as an enrichment treat that gets a strong feeding response. Higher Fat, So Feed in Moderation Superworms are richer and higher in fat than mealworms. That suits active or underweight animals, and it makes them a good treat. For pets prone to weight gain, feed them in moderation and as part of a varied diet rather than the only feeder. Dust for Calcium Like most feeders, superworms are low in calcium, so dust them with TC Calcium Ultra Fine before feeding. They are not the same as calcium-rich black soldier fly larvae, so pair them with variety and supplementation. Care: Keep Them Warm Store superworms at room temperature, between 75 and 85°F, and do not refrigerate them. Cold harms superworms, which is the opposite of mealworms. Keep them in a bran substrate with a slice of vegetable for moisture. Kept together, large superworms stay as larvae and only pupate when separated one by one. Best For Bearded dragons, monitors, and larger geckos. Turtles, birds, and larger fish. Active or underweight animals that need richer food. An enrichment treat with a strong feeding response. Not Best For Small animals, which suit the medium size. The only staple for weight-prone pets, given the fat content. Cold storage, since superworms cannot be refrigerated. Recommended Add-Ons Premium Worm Bran as food and substrate to keep them. Medium Superworms for smaller animals. TC Calcium Ultra Fine to dust them before feeding. Black Soldier Fly Larvae as a calcium-rich feeder for balance. Live Superworms to browse sizes and food. Frequently Asked Questions What are large superworms? They are the larvae of the darkling beetle Zophobas morio, about 1.5″ to 2″, a different species from mealworms. They are a meaty, high-protein feeder for larger insectivores. Are superworms good for my pet? They are high in protein but higher in fat than mealworms. Feed them in moderation, dust them with calcium, and offer them as part of a varied diet. Do I refrigerate superworms? No. Keep them warm at 75 to 85°F, since cold harms them. This is the opposite of how you store mealworms. Do I need to dust them? Yes. Superworms are low in calcium like most feeders, so dust them with a calcium supplement before feeding. Will they turn into beetles? Kept together, large superworms stay as larvae. To pupate them into beetles, you separate each worm into its own space. How many should I get? Choose 25 up to 1,000, matched to how many animals you feed and how often. Learn More About Superworms These sources cover superworm nutrition and biology. AJVR: Calcium and Phosphorus in Feeder Insects. Peer-reviewed veterinary research covering the calcium-to-phosphorus balance of superworms and mealworms. ScienceDirect: Gut Loading (veterinary overview). A reference on why feeder insects need supplementation, which supports dusting superworms. Zophobas morio Overview. A reference on the superworm beetle and its life cycle.